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[Fwd: 2.5.53: VFS: brelse: Trying to free free buffer]



hm, this backtrace actually has info...

btw, I think we need this:


--- 25/fs/ext3/namei.c~ext3-brelse-fix	Sun Dec 29 06:53:39 2002
+++ 25-akpm/fs/ext3/namei.c	Sun Dec 29 06:53:54 2002
@@ -576,8 +576,10 @@ int ext3_htree_fill_tree(struct file *di
 			     (hinfo.minor_hash < start_minor_hash)))
 				continue;
 			if ((err = ext3_htree_store_dirent(dir_file,
-				   hinfo.hash, hinfo.minor_hash, de)) != 0)
+				   hinfo.hash, hinfo.minor_hash, de)) != 0) {
+				brelse(bh);
 				goto errout;
+			}
 			count++;
 		}
 		brelse (bh);


But it's not the cause.

-------- Original Message --------
Subject: 2.5.53: VFS: brelse: Trying to free free buffer
Date: Sun, 29 Dec 2002 13:40:48 +0200
From: Petru Paler <petru paler net>
To: linux-kernel vger kernel org

Got this in the syslog today:

VFS: brelse: Trying to free free buffer
buffer layer error at fs/buffer.c:1182
Call Trace:
 [<c014c345>] __brelse+0x35/0x40
 [<c0180efe>] ext3_htree_fill_tree+0x14e/0x240
 [<c017a809>] ext3_dx_readdir+0x99/0x1e0
 [<c015b390>] filldir64+0x0/0xf0
 [<c017a3f5>] ext3_readdir+0x465/0x490
 [<c015b390>] filldir64+0x0/0xf0
 [<c01d5258>] __blk_put_request+0xd8/0x110
 [<c01d320f>] elv_queue_empty+0x1f/0x30
 [<c01e8d8c>] choose_drive+0x1c/0x190
 [<c01e844a>] ide_do_request+0x3a/0x290
 [<c015b0ca>] vfs_readdir+0x8a/0x90
 [<c015b390>] filldir64+0x0/0xf0
 [<c015b505>] sys_getdents64+0x85/0xc4
 [<c015b390>] filldir64+0x0/0xf0
 [<c010b598>] do_IRQ+0xd8/0x160
 [<c01094e3>] syscall_call+0x7/0xb

Kernel is 2.5.53 (pulled from bk, so it might have a changeset or two
applied after 2.5.53) compiled with all debug options enabled. The
filesystem is on an IDE drive, ext3 with htree enabled. I'm not very
sure how the error came up, I think it was during copying something from
a CD-ROM. Do let me know if there is any other info I should provide.


Petru
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